81493560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1237}}^1$

素因数の和:1318

約数の個数: 128

約数和(自身を含む): 276321600

約数和(自身を除く): 194828040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 488, 540, 549, 610, 732, 915, 1080, 1098, 1220, 1237, 1464, 1647, 1830, 2196, 2440, 2474, 2745, 3294, 3660, 3711, 4392, 4948, 5490, 6185, 6588, 7320, 7422, 8235, 9896, 10980, 11133, 12370, 13176, 14844, 16470, 18555, 21960, 22266, 24740, 29688, 32940, 33399, 37110, 44532, 49480, 55665, 65880, 66798, 74220, 75457, 89064, 111330, 133596, 148440, 150914, 166995, 222660, 226371, 267192, 301828, 333990, 377285, 445320, 452742, 603656, 667980, 679113, 754570, 905484, 1131855, 1335960, 1358226, 1509140, 1810968, 2037339, 2263710, 2716452, 3018280, 3395565, 4074678, 4527420, 5432904, 6791130, 8149356, 9054840, 10186695, 13582260, 16298712, 20373390, 27164520, 40746780, 81493560]

約数ペア:

[(1, 81493560), (2, 40746780), (3, 27164520), (4, 20373390), (5, 16298712), (6, 13582260), (8, 10186695), (9, 9054840), (10, 8149356), (12, 6791130), (15, 5432904), (18, 4527420), (20, 4074678), (24, 3395565), (27, 3018280), (30, 2716452), (36, 2263710), (40, 2037339), (45, 1810968), (54, 1509140), (60, 1358226), (61, 1335960), (72, 1131855), (90, 905484), (108, 754570), (120, 679113), (122, 667980), (135, 603656), (180, 452742), (183, 445320), (216, 377285), (244, 333990), (270, 301828), (305, 267192), (360, 226371), (366, 222660), (488, 166995), (540, 150914), (549, 148440), (610, 133596), (732, 111330), (915, 89064), (1080, 75457), (1098, 74220), (1220, 66798), (1237, 65880), (1464, 55665), (1647, 49480), (1830, 44532), (2196, 37110), (2440, 33399), (2474, 32940), (2745, 29688), (3294, 24740), (3660, 22266), (3711, 21960), (4392, 18555), (4948, 16470), (5490, 14844), (6185, 13176), (6588, 12370), (7320, 11133), (7422, 10980), (8235, 9896)]